CN114940873A - Self-adhesive insulated ceramic silica gel tape for cables, preparation method and winding method - Google Patents
Self-adhesive insulated ceramic silica gel tape for cables, preparation method and winding method Download PDFInfo
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- CN114940873A CN114940873A CN202210775994.9A CN202210775994A CN114940873A CN 114940873 A CN114940873 A CN 114940873A CN 202210775994 A CN202210775994 A CN 202210775994A CN 114940873 A CN114940873 A CN 114940873A
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- silica gel
- ceramic silica
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- 239000000919 ceramic Substances 0.000 title claims abstract description 330
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 256
- 239000000741 silica gel Substances 0.000 title claims abstract description 255
- 229910002027 silica gel Inorganic materials 0.000 title claims abstract description 255
- 238000004804 winding Methods 0.000 title claims abstract description 84
- 239000000853 adhesive Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title abstract description 13
- 229920002379 silicone rubber Polymers 0.000 claims description 110
- 239000003795 chemical substances by application Substances 0.000 claims description 90
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 78
- 239000003365 glass fiber Substances 0.000 claims description 76
- 239000004744 fabric Substances 0.000 claims description 73
- 239000000843 powder Substances 0.000 claims description 62
- 238000004898 kneading Methods 0.000 claims description 49
- 239000002131 composite material Substances 0.000 claims description 42
- 239000007787 solid Substances 0.000 claims description 40
- 229910052697 platinum Inorganic materials 0.000 claims description 39
- 238000005096 rolling process Methods 0.000 claims description 34
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 33
- 229920002554 vinyl polymer Polymers 0.000 claims description 32
- 229920002545 silicone oil Polymers 0.000 claims description 29
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical group C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 16
- 239000004945 silicone rubber Substances 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 14
- 238000005520 cutting process Methods 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 14
- 229920003023 plastic Polymers 0.000 claims description 13
- 239000004033 plastic Substances 0.000 claims description 13
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 239000002390 adhesive tape Substances 0.000 claims description 7
- 238000003490 calendering Methods 0.000 claims description 7
- 238000003851 corona treatment Methods 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 7
- 238000004806 packaging method and process Methods 0.000 claims description 7
- 238000002791 soaking Methods 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 6
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 148
- 230000000694 effects Effects 0.000 description 12
- 239000000047 product Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 9
- 238000009413 insulation Methods 0.000 description 8
- 230000009970 fire resistant effect Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000000835 fiber Substances 0.000 description 6
- 239000005357 flat glass Substances 0.000 description 6
- 238000004073 vulcanization Methods 0.000 description 6
- 239000011241 protective layer Substances 0.000 description 5
- 239000010445 mica Substances 0.000 description 4
- 229910052618 mica group Inorganic materials 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000012767 functional filler Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052627 muscovite Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/21—Paper; Textile fabrics
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/08—Insulating conductors or cables by winding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/302—Applications of adhesives in processes or use of adhesives in the form of films or foils for bundling cables
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/20—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself
- C09J2301/208—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself the adhesive layer being constituted by at least two or more adjacent or superposed adhesive layers, e.g. multilayer adhesive
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/10—Presence of inorganic materials
- C09J2400/14—Glass
- C09J2400/143—Glass in the substrate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of ceramic silica gel tapes, in particular to a self-adhesive insulating ceramic silica gel tape for cables, a preparation method and a winding method. The invention aims to provide the self-adhesive insulating ceramic silica gel tape for the cable, which has excellent fire resistance, inherits all the advantages of the common ceramic silica gel tape and effectively solves the defects of the common ceramic silica gel tape.
Description
Technical Field
The invention relates to the technical field of ceramic silica gel tapes, in particular to a self-adhesive insulating ceramic silica gel tape for cables, a preparation method and a winding method.
Background
The ceramic silica gel is a special silicon rubber refractory material prepared by taking methyl vinyl silicon rubber as a base material, adding a composite ceramic powder forming assistant and a functional filler and performing a certain processing technology. The ceramic fire-resistant silicon rubber has the general performance of common silicon rubber materials under normal conditions. The ceramic silica gel can be rapidly sintered into a hard ceramic shell at the temperature of 600 ℃ or above, so that the material has excellent fire resistance, heat insulation, thermal shock resistance and other characteristics. Therefore, the ceramic silica gel is widely applied to the fields of fire-resistant electric wires and cables, fire-fighting auxiliary materials, new energy automobile battery safety protection, aerospace and the like, such as hospitals, theaters, commercial buildings, subways, tunnels, railways, airports, stations, large-scale public sports, entertainment venues, large supermarkets, hotels and other densely populated places; television stations, military facilities, nuclear power plants and other areas where stringent requirements are placed on electrical and communication facilities; coal, chemical industry, medicine, steel, metallurgy, ships and other areas with harsh external environment.
The common ceramic silica gel tape is prepared by rolling a layer of ceramic silica gel on glass fiber cloth, vulcanizing the ceramic silica gel, so that the common ceramic silica gel tape has the characteristics of silicon rubber, can achieve the binding property and the winding property of the common mica tape, and has the following characteristics due to the holding of the ceramic silica gel: the ceramic silica gel tape is quickly fired into a ceramic-like hard and complete shell at the temperature of 550-1000 ℃, and the hard shell armor after combustion plays a good role in protecting a line and ensures the smoothness of the line under the condition of fire; the ceramic silica gel tape can replace a mica tape to be used as a fire-resistant layer of a fire-resistant cable, particularly a medium-voltage and low-voltage fire-resistant wire cable, not only can be used as the fire-resistant layer, but also can be used as an insulating layer; the density of the mica tape is lower than that of the mica tape, only 1.4-1.50 g/cm3 is needed, the mica tape is easy to absorb moisture and is waterproof, the storage period is short, drying treatment is needed during processing, and the processing cost is increased; the ceramic silica gel tape does not absorb water or moisture; the material is soft, good in elasticity, high in strength, excellent in mechanical property and electrical insulation property in a normal state, and the use temperature range is as follows: -70 ℃ to +200 ℃; the fireproof wire and cable produced by the ceramic silica gel tape has the fire resistance grade reaching 94-V0 grade standard, and the product has the advantages of white color, low smoke, no halogen, no phosphorus and nitrogen, no heavy metal, no toxicity, no harm, no melting and no dripping; the smoke toxicity safety level reaches the highest safety level ZA1 level of the high polymer material, and secondary damage to human bodies is avoided; and the standard of European Union RoHS is met.
But the common ceramic silica gel belt has the defects that: since the wrapping layers cannot be sealed, moisture can permeate in a humid environment, the insulativity can be reduced, and certain leakage risk can be generated; the bonding between the winded layer and the layer can not be realized, the head must be bound after the roll winding, otherwise the head can be automatically dispersed; the winded layers and the layers cannot be completely bonded, when the ceramic silica gel tape is rubbed and dragged by external force, the ceramic silica gel tape is displaced and stacked, the conductive wires in the ceramic silica gel tape are exposed, and the risk of electric leakage is generated; the common ceramic silica gel tape has a small friction coefficient on the glass fiber surface of the silica gel surface, and the effect of the winding is not ideal when the cotton is winded in multiple layers, the roll is fixed with the roll in the process of winding, and a very thick protective layer has to be winded outside the roll.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention aims to provide the self-adhesive insulating ceramic silica gel tape for the cable, which has excellent fire resistance, inherits all the advantages of the common ceramic silica gel tape and effectively overcomes the defects of the common ceramic silica gel tape.
The invention also aims to provide a preparation method of the self-adhesive insulating ceramic silica gel tape for the cable, which is mature, low in production cost, capable of realizing large-scale production and capable of meeting expectations and requirements of customers for product safety.
Still another object of the present invention is to provide a method for winding a self-adhesive ceramic silica gel tape for cables, which is simple in operation and convenient in control, wherein the insulation property of the ceramic silica gel tape is improved, so that a thinner self-adhesive ceramic silica gel tape can be used, thereby reducing the weight, and the unvulcanized ceramic silica gel in the self-adhesive ceramic silica gel tape has the self-adhesion property, so that the tape does not need to be added for fixing in the winding process, and the unvulcanized ceramic silica gel forms a sleeve-shaped protective layer after heating, thereby the external protective cover can be thinned correspondingly, thereby saving the material weight and the cost.
The purpose of the invention is realized by the following technical scheme: a self-adhesive insulating ceramic silica gel tape for cables comprises a glass fiber cloth layer, a vulcanized ceramic silica gel layer arranged on the upper surface of the glass fiber cloth layer, an unvulcanized ceramic silica gel layer arranged on the upper surface of the vulcanized ceramic silica gel layer and a release film layer arranged on the upper surface of the unvulcanized ceramic silica gel layer, wherein the vulcanized ceramic silica gel layer is formed by coating vulcanized ceramic silica gel, and the unvulcanized ceramic silica gel layer is formed by coating unvulcanized ceramic silica gel; the glass fiber cloth layer is made of 1078 flat glass fiber cloth with the gram weight of 48g/m 2 (ii) a The release film layer is a PE film, a PP film, a PET film, an OPP film or release paper.
The ceramic silica gel tape has excellent fire resistance, the problem that the winding surface cannot achieve a complete sealing effect due to the fact that a common ceramic silica gel tape does not have an adhesive vulcanization effect can be well solved by arranging the vulcanized ceramic silica gel layer and the unvulcanized ceramic silica gel layer, the insulating effect of the ceramic silica gel tape is improved by more than 50% compared with that of the common ceramic silica gel tape after being wound under the condition of the same thickness, meanwhile, the moisture resistance, acid and alkali resistance and aging resistance of a wound conductive cable are improved by 50-80%, in addition, the problem that the winding surface cannot be bonded due to the fact that the common ceramic silica gel tape does not have the adhesive vulcanization effect, the winding layer can be displaced and stacked under the action of external force, and a conductive wire in the winding layer can be exposed, so that the risk of electric leakage is generated is solved, and particularly for parts with movement, after the product is used, the safety performance is improved by more than 50 percent (such as a conductive copper plate on an electric automobile); the common ceramic silica gel tape has small silica gel glass fiber cloth cover friction coefficient, can generate relative sliding when a plurality of layers are wound, the winding effect is not ideal, a binding tape is added for fixing in the winding process, a thick protective layer is wound outside the common ceramic silica gel tape, the insulating property of the ceramic silica gel tape is improved, so the problem is solved well, the thinner ceramic silica gel tape can be used for reducing the weight, the unvulcanized ceramic silica gel adopted by the unvulcanized ceramic silica gel layer in the ceramic silica gel tape has self-adhesion, the binding tape is not required to be added for fixing in the winding process, the unvulcanized ceramic silica gel can form a sleeve-shaped protective layer after being heated, so the external protective sleeve can be thinned correspondingly, and the material weight and the cost are saved. The ceramic silica gel tape is widely applied to the fields of fire-resistant electric wires and cables, fire-fighting auxiliary materials, new energy automobile battery safety protection, aerospace and the like, such as hospitals, theaters, commercial buildings, subways, tunnels, railways, airports, stations, large public sports, entertainment places, large supermarkets, hotels and other dense population places; television stations, military facilities, nuclear power plants and other areas where stringent requirements are placed on electrical and communication facilities; coal, chemical industry, medicine, steel, metallurgy, ships and other areas with severe external environments.
Preferably, the ceramic sulfide silica gel comprises the following raw materials in parts by weight: 90-110 parts of composite ceramic powder, 70-80 parts of solid silicone rubber, 6-10 parts of vinyl silicone oil, 1-5 parts of first toner and 0.6-2.4 parts of first vulcanizing agent; the solid silicon rubber is methyl vinyl silicon rubber, and the methyl vinyl silicon rubber adopts Zhengan GA-1053J; the composite ceramic powder is produced by Jiangxi AoTe Fine powder company.
Preferably, the vulcanized ceramic silica gel is prepared by the following steps:
s1, dividing the composite ceramic powder, the solid silicon rubber, the vinyl silicone oil and the first color powder into three equal parts by weight, adding the three equal parts into a special silicon rubber kneader for kneading, heating to 125-135 ℃ for kneading for 40-50min, vacuumizing for 8-12min after kneading, taking out of a pot, remilling for 15-25min in an open mill, filtering, and cooling for later use;
s2, adding the first vulcanizing agent into the mixture obtained in the step S1 before production, and fully mixing to obtain the vulcanized ceramic silicon rubber added with the vulcanizing agent.
The vulcanized ceramic silica gel prepared from the raw materials can effectively play a role in waterproof bonding and also can effectively play a role in fireproof and heat insulation, can assist in improving the waterproof bonding performance, high toughness and fireproof and heat insulation performance of the ceramic silica gel belt body, and can improve the wear resistance, corrosion resistance and waterproofness of the ceramic silica gel belt body. The adopted composite ceramic powder has extremely strong hydrophobicity, high dispersibility can improve the elongation of a vulcanized ceramic silica gel finished product, and meanwhile, the in-situ tensile strength and the ceramic effect are kept, a vertical hard ceramic body is formed after combustion, and the ceramic body has high strength and is not cracked; the content of vinyl in the adopted methyl vinyl silicone rubber is 0.2-0.3% (mole fraction), the heat aging resistance and high-temperature compression deformation resistance of the adopted methyl vinyl silicone rubber are greatly improved by introducing a small amount of unsaturated vinyl, and the content of the methyl vinyl silicone rubber has great influence on the vulcanization effect and the heat resistance of the vulcanized ceramic silica gel; the strength of the silicon rubber is affected when the vinyl content in the vinyl silicone oil is 0.1% -3% too low, and the elongation at break of the silicon rubber is reduced when the vinyl content is too high, so that the ceramic sulfide silica gel is ensured to have higher strength, and the ceramic sulfide silica gel is also ensured to have higher elongation at break.
Preferably, the first vulcanizing agent is a two-component platinum vulcanizing agent MC-98AB, the two-component platinum vulcanizing agent MC-98AB is produced by Mitsum rubber and plastic materials Co., Ltd, Dongguan, and each part of the two-component platinum vulcanizing agent MC-98AB comprises 0.3-0.7% of platinum vulcanizing agent MC-98A and 1.3-1.7% of platinum vulcanizing agent MC-98B.
Preferably, the unvulcanized ceramic silica gel comprises the following raw materials in parts by weight: 113 parts of composite ceramic powder, 70-80 parts of solid silicone rubber, 6-10 parts of vinyl silicone oil, 1-5 parts of second toner and 0.01-0.03 part of second disulfide; the methyl vinyl silicone rubber adopts Zhengan GA-1053J; the composite ceramic powder is produced by Jiangxi AoTe Fine powder company.
Preferably, the second vulcanizing agent adopts a single-component platinum vulcanizing agent PT2500D produced by Shenzhen department Junchi scientific and technological Limited.
Preferably, the unvulcanized ceramic silica gel is prepared by:
e1, dividing the composite ceramic powder, the solid silicon rubber, the vinyl silicone oil and the second color powder into three equal parts by weight, adding the three equal parts into a special silicon rubber kneader for kneading, heating to 120 ℃ and kneading at 140 ℃ for 40-50min, vacuumizing for 8-12min after kneading, taking out of a pot, remilling for 16-24min in an open mill, filtering, and cooling for later use;
e2, adding a second vulcanizing agent into the mixture obtained in the step E1 before production, and fully mixing to obtain the unvulcanized ceramic silica gel added with the vulcanizing agent.
The unvulcanized ceramic silica gel layer prepared by the raw materials is added with a single-component platinum vulcanizing agent PT2500D, so that the unvulcanized ceramic silica gel layer can be unvulcanized within 180 days at the temperature of below 30 ℃, can be quickly vulcanized and hardened at the temperature of above 80-180 ℃, and finally achieves the state of completely sealing and bonding the glass fiber cloth layer.
The invention also provides a preparation method of the self-adhesive insulating ceramic silica gel tape for the cable, which comprises the following steps:
1) selecting glass fiber cloth, carrying out corona treatment on two sides of the glass fiber cloth, soaking and coupling treatment by using a silane coupling agent KH560, then placing the glass fiber cloth in an oven with the temperature of 125-;
2) calendering the vulcanized ceramic silicon rubber on the glass fiber cloth by a calender, then putting the glass fiber cloth into a tunnel oven for baking, controlling the baking temperature to be set from low to high at the temperature of 120 plus 200 ℃, setting the belt speed to be 5m/min, setting the curing time to be 2.5-3.5min, forming a vulcanized ceramic silicon rubber layer, and rolling for later use after the glass fiber cloth layer and the vulcanized ceramic silicon rubber layer are completely bonded and vulcanized;
3) rolling an unvulcanized ceramic silica gel layer on the upper surface of the vulcanized ceramic silica gel layer obtained in the step 2) by a rolling mill, attaching a release film on the upper surface of the unvulcanized ceramic silica gel layer, and rolling by using a paper tube or a plastic tube core to obtain a self-adhesive insulating ceramic silica gel tape for cables for later use;
4) and (3) cutting the adhesive tape rolled in the step 3) into products with different widths through a cutting table, and packaging.
The self-adhesive insulating ceramic silica gel tape for the cable is prepared by the method, has excellent fire resistance, inherits all the advantages of the common ceramic silica gel tape, effectively solves the defects of the common ceramic silica gel tape, has mature preparation method and low production cost, can be produced in a large scale, and can meet the expectations and requirements of customers on product safety.
The invention also provides a winding method of the self-adhesive insulated ceramic silica gel tape for the cable, which comprises the following steps:
firstly, separating a separating membrane of a cut ceramic silica gel belt for later use;
secondly, winding the cable, namely removing the ceramic silica gel tape of the release film, so that the unvulcanized ceramic silica gel layer is attached to the cable, the glass fiber layer is outside, winding in the left direction or the right direction is adopted during winding, the next winding is controlled to press the previous winding for 3-5mm in width until the required length is reached, and blowing for 0.8-1.2min at the winding terminal by an air heater 190-210 ℃ after the winding is finished for later use;
and thirdly, repeating the step II for a plurality of times according to the requirements of winding different cables.
The self-adhesive insulating ceramic silica gel tape for the cable adopts the winding method,
in the second step, the glass fiber cloth layer is treated by the silane coupling agent KH560, so that the unvulcanized ceramic silica gel layer is vulcanized with the glass fiber cloth layer and is completely bonded together when being heated. When the unvulcanized ceramic silica gel layer and the glass fiber cloth layer are wound together, the unvulcanized ceramic silica gel layer (in a daub shape) can be extruded into the pores of the glass fiber cloth under the action of a stretching external force during winding, and after the wound piece is placed into an oven to be baked for 3min at 180 ℃, the unvulcanized ceramic silica gel layer can be completely chemically bonded with the silane coupling layer on the glass fiber cloth, so that a completely sealed and insulated state is achieved; if a longer wire or cable is used, after the wire or cable is wound, the heating box can be used for heating, or the heating can be carried out while winding; for field operation, a hot air gun can be used for heating, self-crosslinking can be carried out at the temperature higher than 35 ℃ in a natural environment, vulcanization can be carried out slowly, the vulcanization hardness can reach 90% within one month at the temperature higher than 40 ℃, and the vulcanization is faster at higher temperature, so that a completely sealed bonding state can be finally achieved; if the HK560 coupling agent is coated on the conductive cable and dried in the air, the wound unvulcanized ceramic silica gel layer can be completely bonded with the cable, so that the ceramic silica gel belt is effectively prevented from displacing under the action of external force, the effect of integrally forming the ceramic silica gel layer and the cable together is achieved or approached, and the insulating sealing property and the scraping resistance of the cable are improved. When the layer is wound to a layer with no desired insulation effect, the second layer and the third layer can be repeatedly wound, each layer can be completely bonded together, the sealing insulation effect and the wear-resistant effect can be multiplied, and the leakage safety protection coefficient of the conductive cable on the automobile and some moving parts can be multiplied.
The invention has the beneficial effects that: the ceramic silica gel band has excellent fire resistance, and effectively overcomes the defects of the common ceramic silica gel band besides inheriting all the advantages of the common ceramic silica gel band.
The self-adhesive insulating ceramic silica gel tape for the cable is mature in preparation, low in production cost, capable of being produced in a large scale and capable of meeting expectations and requirements of customers for product safety. The winding method of the self-adhesive insulated ceramic silica gel tape for the cable is simple to operate and convenient to control, the insulativity of the ceramic silica gel tape is improved, so that a thinner self-adhesive insulated ceramic silica gel tape can be used, the weight is reduced, the unvulcanized ceramic silica gel in the self-adhesive insulated ceramic silica gel tape has the self-adhesiveness, the binding tape does not need to be added for fixing in the winding process, the unvulcanized ceramic silica gel can form a sleeve-shaped protective layer after being heated, the external protective sleeve can also be thinned correspondingly, and the material weight and the cost are saved.
Detailed Description
Example 1
A self-adhesive insulating ceramic silica gel tape for cables comprises a glass fiber cloth layer, a vulcanized ceramic silica gel layer arranged on the upper surface of the glass fiber cloth layer, an unvulcanized ceramic silica gel layer arranged on the upper surface of the vulcanized ceramic silica gel layer and a release film layer arranged on the upper surface of the unvulcanized ceramic silica gel layer, wherein the vulcanized ceramic silica gel layer is formed by coating vulcanized ceramic silica gel, and the unvulcanized ceramic silica gel layer is formed by coating unvulcanized ceramic silica gel; the glass fiber cloth layer is 1078 flat glass fiber cloth with the gram weight of 48g/m 2 。
The release film layer is a PE film.
The vulcanized ceramic silica gel comprises the following raw materials in parts by weight: 90 parts of composite ceramic powder, 70 parts of solid silicon rubber, 6 parts of vinyl silicone oil, 1 part of first toner and 0.6 part of first vulcanizing agent; the solid silicon rubber is methyl vinyl silicon rubber which adopts Zheng' an GA-1053J; the composite ceramic powder is produced by Jiangxi Aote scientific and technological limited company.
The vulcanized ceramic silica gel is prepared by the following steps:
s1, dividing the composite ceramic powder, the solid silicon rubber, the vinyl silicone oil and the first color powder into three equal parts by weight, adding the three equal parts into a special silicon rubber kneading machine for kneading, heating to 125 ℃ for kneading for 40min, vacuumizing for 8min after kneading, taking out of a pot, remilling for 15min in an open mill, filtering, and cooling for later use;
s2, adding the first vulcanizing agent into the mixture obtained in the step S1 before production, and fully mixing to obtain the vulcanized ceramic silicon rubber added with the vulcanizing agent.
The first vulcanizing agent is a two-component platinum vulcanizing agent MC-98AB, the two-component platinum vulcanizing agent MC-98AB is produced by Maiteng rubber and plastic materials Co., Ltd, Dongguan, and each of the two-component platinum vulcanizing agent MC-98AB comprises 0.3% of a platinum vulcanizing agent MC-98A and 1.3% of a platinum vulcanizing agent MC-98B.
The unvulcanized ceramic silica gel comprises the following raw materials in parts by weight: 93 parts of composite ceramic powder, 70 parts of solid silicone rubber, 6 parts of vinyl silicone oil, 1 part of second toner and 0.01 part of second disulfide; the solid silicon rubber is methyl vinyl silicon rubber which adopts Zheng' an GA-1053J; the composite ceramic powder is produced by Jiangxi Aote scientific and technological limited company.
The unvulcanized ceramic silica gel is prepared by the following steps:
e1, dividing the composite ceramic powder, the solid silicon rubber, the vinyl silicone oil and the second color powder into three equal parts by weight, adding the three equal parts into a special silicon rubber kneader for kneading, heating to 120 ℃ for kneading for 40min, vacuumizing for 8min after kneading, taking out of a pot, remilling for 16min in an open mill, filtering, and cooling for later use;
e2, adding a second vulcanizing agent into the mixture obtained in the step E1 before production, and fully mixing to obtain the unvulcanized ceramic silica gel added with the vulcanizing agent.
The second vulcanizing agent adopts a single-component platinum vulcanizing agent PT2500D produced by Shenzhen department Junchi scientific and technology Limited.
The preparation method of the self-adhesive insulating ceramic silica gel tape for the cable comprises the following steps:
1) selecting glass fiber cloth, carrying out corona treatment on two sides of the glass fiber cloth, soaking and coupling treatment by using a silane coupling agent KH560, then baking for 1.8min in an oven at 125 ℃, and baking and rolling for later use;
2) calendering vulcanized ceramic silicon rubber on glass fiber cloth by a calender, then putting the glass fiber cloth into a tunnel oven for baking, controlling the baking temperature to be 120 ℃ from low to high, setting the belt speed to be 5m/min, setting the curing time to be 2.5min, forming a vulcanized ceramic silicon rubber layer, and rolling for later use after the glass fiber cloth layer and the vulcanized ceramic silicon rubber layer are completely bonded and vulcanized;
3) rolling an unvulcanized ceramic silica gel layer on the upper surface of the vulcanized ceramic silica gel layer obtained in the step 2) by a rolling mill, attaching a release film on the upper surface of the unvulcanized ceramic silica gel layer, and rolling by using a paper tube or a plastic tube core to obtain a self-adhesive insulating ceramic silica gel tape for cables for later use;
4) and (3) cutting the adhesive tape rolled in the step 3) into products with different widths through a cutting table, and packaging.
The winding method of the self-adhesive insulated ceramic silica gel tape for the cable comprises the following steps:
firstly, separating a separating membrane of a cut ceramic silica gel belt for later use;
secondly, winding the cable, namely removing the ceramic silica gel tape of the release film, attaching an unvulcanized ceramic silica gel layer to the cable, winding the glass fiber layer outside in the left direction or the right direction during winding, controlling the next winding to press the previous winding for 3mm in width until the required length is reached, and blowing for 0.8min at the winding terminal by an air heater at 190 ℃ for later use after the winding is finished;
and thirdly, repeating the step II for a plurality of times according to the requirements of winding different cables.
Example 2
A self-adhesive insulating ceramic silica gel tape for cables comprises a glass fiber cloth layer, a vulcanized ceramic silica gel layer arranged on the upper surface of the glass fiber cloth layer, an unvulcanized ceramic silica gel layer arranged on the upper surface of the vulcanized ceramic silica gel layer and a release film layer arranged on the upper surface of the unvulcanized ceramic silica gel layer, wherein the vulcanized ceramic silica gel layer is formed by coating vulcanized ceramic silica gel, and the unvulcanized ceramic silica gel layer is formed by coating unvulcanized ceramic silica gel; the glass fiber cloth layer is made of 1078 flat glass fiber cloth with the gram weight of 48g/m 2 . The release film layer is a PP film.
The vulcanized ceramic silica gel comprises the following raw materials in parts by weight: 95 parts of composite ceramic powder, 73 parts of solid silicon rubber, 7 parts of vinyl silicone oil, 2 parts of first color powder and 1.0 part of first vulcanizing agent; the solid silicon rubber is methyl vinyl silicon rubber which adopts Zheng' an GA-1053J; the composite ceramic powder is produced by Jiangxi Aote scientific and technological limited company.
The vulcanized ceramic silica gel is prepared by the following steps:
s1, dividing the composite ceramic powder, the solid silicon rubber, the vinyl silicone oil and the first color powder into three equal parts by weight, adding the three equal parts into a special silicon rubber kneading machine for kneading, heating to 128 ℃ for kneading for 43min, vacuumizing for 9min after kneading, taking out of a pot, remilling for 18min in an open mill, filtering, and cooling for later use;
s2, adding the first vulcanizing agent into the mixture obtained in the step S1 before production, and fully mixing to obtain the vulcanized ceramic silicon rubber added with the vulcanizing agent.
The first vulcanizing agent is a two-component platinum vulcanizing agent MC-98AB, the two-component platinum vulcanizing agent MC-98AB is produced by Mitsum rubber and plastic materials Co., Ltd, Dongguan, and each of the two-component platinum vulcanizing agent MC-98AB comprises 0.4% of platinum vulcanizing agent MC-98A and 1.4% of platinum vulcanizing agent MC-98B.
The unvulcanized ceramic silica gel comprises the following raw materials in parts by weight: 98 parts of composite ceramic powder, 73 parts of solid silicone rubber, 7 parts of vinyl silicone oil, 2 parts of second color powder and 0.015 part of second vulcanizing agent; the solid silicon rubber is methyl vinyl silicon rubber which adopts Zheng' an GA-1053J; the composite ceramic powder is produced by Jiangxi Aote scientific and technological limited company.
The unvulcanized ceramic silica gel is prepared by the following steps:
e1, dividing the composite ceramic powder, the solid silicon rubber, the vinyl silicone oil and the second color powder into three equal parts by weight, adding the three equal parts into a special silicon rubber kneading machine for kneading, heating to 125 ℃ for kneading for 43min, vacuumizing for 9min after kneading, taking out of a pot, remilling for 18min in an open mill, filtering, and cooling for later use;
e2, adding a second vulcanizing agent into the mixture obtained in the step E1 before production, and fully mixing to obtain the unvulcanized ceramic silica gel added with the vulcanizing agent.
The second vulcanizing agent adopts a single-component platinum vulcanizing agent PT2500D produced by Shenzhen department Junchi scientific and technology Limited.
The preparation method of the self-adhesive insulating ceramic silica gel tape for the cable comprises the following steps:
1) selecting glass fiber cloth, carrying out corona treatment on two sides of the glass fiber cloth, soaking and coupling treatment by using a silane coupling agent KH560, then baking for 1.9min in an oven at 128 ℃, and baking and rolling for later use;
2) calendering vulcanized ceramic silicon rubber on glass fiber cloth by a calender, then putting the glass fiber cloth into a tunnel oven for baking, controlling the baking temperature to be 140 ℃ from low to high, setting the belt speed to be 5m/min, setting the curing time to be 2.8min, forming a vulcanized ceramic silicon rubber layer, and rolling for later use after the glass fiber cloth layer and the vulcanized ceramic silicon rubber layer are completely bonded and vulcanized;
3) rolling an unvulcanized ceramic silica gel layer on the upper surface of the vulcanized ceramic silica gel layer obtained in the step 2) by a rolling mill, attaching a release film on the upper surface of the unvulcanized ceramic silica gel layer, and rolling by using a paper tube or a plastic tube core to obtain a self-adhesive insulating ceramic silica gel tape for cables for later use;
4) and (3) cutting the adhesive tape rolled in the step 3) into products with different widths through a cutting table, and packaging.
The winding method of the self-adhesive insulated ceramic silica gel tape for the cable comprises the following steps:
firstly, separating a separating membrane of a cut ceramic silica gel belt for later use;
secondly, winding the cable, namely removing the ceramic silica gel tape of the release film, attaching an unvulcanized ceramic silica gel layer to the cable, winding the glass fiber layer outside in the left direction or the right direction during winding, controlling the next winding to press the previous winding to be 3.5mm wide until the required length is reached, and blowing for 0.9min at the winding terminal by a hot air blower at 195 ℃ for later use after the winding is finished;
and thirdly, repeating the step II for a plurality of times according to the requirements of winding different cables.
Example 3
A self-adhesive insulating ceramic silica gel tape for cables comprises a glass fiber cloth layer, a vulcanized ceramic silica gel layer arranged on the upper surface of the glass fiber cloth layer, an unvulcanized ceramic silica gel layer arranged on the upper surface of the vulcanized ceramic silica gel layer and a release film layer arranged on the upper surface of the unvulcanized ceramic silica gel layer, wherein the vulcanized ceramic silica gel layer is formed by coating vulcanized ceramic silica gel, and the unvulcanized ceramic silica gel layer is formed by coating unvulcanized ceramic silica gel; the glass fiber cloth layer adopts 1078 flat glass fiber cloth with the gram weight of 48g/m 2 . The release film layer is a PET film.
The vulcanized ceramic silica gel comprises the following raw materials in parts by weight: 100 parts of composite ceramic powder, 75 parts of solid silicon rubber, 8 parts of vinyl silicone oil, 3 parts of first toner and 1.5 parts of first vulcanizing agent; the solid silicon rubber is methyl vinyl silicon rubber, and the methyl vinyl silicon rubber adopts Zhengan GA-1053J; the composite ceramic powder is produced by Jiangxi Aote scientific and technological limited company.
The vulcanized ceramic silica gel is prepared by the following steps:
s1, dividing the composite ceramic powder, the solid silicon rubber, the vinyl silicone oil and the first color powder into three equal parts by weight, adding the three equal parts into a special silicon rubber kneading machine for kneading, heating to 130 ℃ for kneading for 45min, vacuumizing for 10min after kneading, taking out of a pot, remilling for 20min in an open mill, filtering, and cooling for later use;
s2, adding the first vulcanizing agent into the mixture obtained in the step S1 before production, and fully mixing to obtain the vulcanized ceramic silicon rubber added with the vulcanizing agent.
The first vulcanizing agent is a two-component platinum vulcanizing agent MC-98AB, the two-component platinum vulcanizing agent MC-98AB is produced by Maiteng rubber and plastic materials Co., Ltd, Dongguan, and each of the two-component platinum vulcanizing agent MC-98AB comprises 0.5% of a platinum vulcanizing agent MC-98A and 1.5% of a platinum vulcanizing agent MC-98B.
The unvulcanized ceramic silica gel comprises the following raw materials in parts by weight: 103 parts of composite ceramic powder, 75 parts of solid silicon rubber, 8 parts of vinyl silicone oil, 3 parts of second toner and 0.02 part of second disulfide; the solid silicon rubber is methyl vinyl silicon rubber, and the methyl vinyl silicon rubber adopts Zhengan GA-1053J; the composite ceramic powder is produced by Jiangxi Aote scientific and technological limited company.
The unvulcanized ceramic silica gel is prepared by the following steps:
e1, dividing the composite ceramic powder, the solid silicon rubber, the vinyl silicone oil and the second color powder into three equal parts by weight, adding the three equal parts into a special silicon rubber kneading machine for kneading, heating to 130 ℃ for kneading for 45min, vacuumizing for 10min after kneading, taking out of a pot, remilling for 20min in an open mill, filtering, and cooling for later use;
e2, adding the second vulcanizing agent into the mixture obtained in the step E1 before production, and fully mixing to obtain the unvulcanized ceramic silica gel added with the vulcanizing agent.
The second vulcanizing agent adopts a single-component platinum vulcanizing agent PT2500D produced by Shenzhen department Junchi scientific and technology Limited.
The preparation method of the self-adhesive insulating ceramic silica gel tape for the cable comprises the following steps:
1) selecting glass fiber cloth, carrying out corona treatment on two sides of the glass fiber cloth, soaking and coupling treatment by using a silane coupling agent KH560, then baking for 2.0min in an oven at 130 ℃, and baking and rolling for later use;
2) calendering vulcanized ceramic silicon rubber on glass fiber cloth by a calender, then putting the glass fiber cloth into a tunnel oven for baking, controlling the baking temperature to be set from low to high at 160 ℃, controlling the belt speed to be 5m/min, controlling the curing time to be 3.0min, forming a vulcanized ceramic silicon rubber layer, and rolling for later use after the glass fiber cloth layer and the vulcanized ceramic silicon rubber layer are completely bonded and vulcanized;
3) rolling an unvulcanized ceramic silica gel layer on the upper surface of the vulcanized ceramic silica gel layer obtained in the step 2) by a rolling mill, attaching a release film on the upper surface of the unvulcanized ceramic silica gel layer, and rolling by using a paper tube or a plastic tube core to obtain a self-adhesive insulating ceramic silica gel tape for cables for later use;
4) and (4) cutting the adhesive tape rolled in the step 3) into products with different widths through a cutting table, and packaging.
The winding method of the self-adhesive insulated ceramic silica gel tape for the cable comprises the following steps:
firstly, separating a separating membrane of a cut ceramic silica gel belt for later use;
second, the ceramic silica gel tape with the release film is removed in the winding step on the cable, so that the unvulcanized ceramic silica gel layer is attached to the cable, the glass fiber layer is arranged outside, the left direction winding or the right direction winding is adopted when the glass fiber layer is wound, the width of the former winding is controlled to be pressed by the latter winding to be 4.0mm until the required length is reached, and the ceramic silica gel tape is blown for 1min at the winding terminal end by an air heater after the winding is finished for standby;
and thirdly, repeating the step II for a plurality of times according to the requirements of winding different cables.
Example 4
A self-adhesive insulating ceramic silica gel tape for cables comprises a glass fiber cloth layer, a vulcanized ceramic silica gel layer arranged on the upper surface of the glass fiber cloth layer, an unvulcanized ceramic silica gel layer arranged on the upper surface of the vulcanized ceramic silica gel layer and a release film layer arranged on the upper surface of the unvulcanized ceramic silica gel layer, wherein the vulcanized ceramic silica gel layer is formed by coating vulcanized ceramic silica gel, and the unvulcanized ceramic silica gel layer is formed by coating unvulcanized ceramic silica gel; the glass fiber cloth layer is made of 1078 flat glass fiber cloth with the gram weight of 48g/m 2 . The release film layer is an OPP film.
The vulcanized ceramic silica gel comprises the following raw materials in parts by weight: 105 parts of composite ceramic powder, 78 parts of solid silicone rubber, 9 parts of vinyl silicone oil, 4 parts of first color powder and 1.9 parts of first vulcanizing agent; the solid silicon rubber is methyl vinyl silicon rubber which adopts Zheng' an GA-1053J; the composite ceramic powder is produced by Jiangxi Aote scientific and technological limited company.
The vulcanized ceramic silica gel is prepared by the following steps:
s1, dividing the composite ceramic powder, the solid silicon rubber, the vinyl silicone oil and the first color powder into three equal parts by weight, adding the three equal parts into a special silicon rubber kneading machine for kneading, heating to 133 ℃ for kneading for 48min, vacuumizing for 11min after kneading, taking out of a pot, remilling for 23min in an open mill, filtering, and cooling for later use;
s2, adding the first vulcanizing agent into the mixture obtained in the step S1 before production, and fully mixing to obtain the vulcanized ceramic silicon rubber added with the vulcanizing agent.
The first vulcanizing agent is a two-component platinum vulcanizing agent MC-98AB, the two-component platinum vulcanizing agent MC-98AB is produced by Mitsum rubber and plastic materials Co., Ltd, Dongguan, and each of the two-component platinum vulcanizing agent MC-98AB comprises 0.6% of platinum vulcanizing agent MC-98A and 1.6% of platinum vulcanizing agent MC-98B.
The unvulcanized ceramic silica gel comprises the following raw materials in parts by weight: 108 parts of composite ceramic powder, 78 parts of solid silicone rubber, 9 parts of vinyl silicone oil, 4 parts of second pigment powder and 0.025 part of second vulcanizing agent; the solid silicon rubber is methyl vinyl silicon rubber which adopts Zheng' an GA-1053J; the composite ceramic powder is produced by Jiangxi Aote scientific and technological limited company.
The unvulcanized ceramic silica gel is prepared by the following steps:
e1, dividing the composite ceramic powder, the solid silicon rubber, the vinyl silicone oil and the second color powder into three equal parts by weight, adding the three equal parts into a special silicon rubber kneader for kneading, heating to 138 ℃ for kneading for 48min, vacuumizing for 11min after kneading, taking out of a pot, remilling for 22min in an open mill, filtering, and cooling for later use;
e2, adding a second vulcanizing agent into the mixture obtained in the step E1 before production, and fully mixing to obtain the unvulcanized ceramic silica gel added with the vulcanizing agent.
The second vulcanizing agent adopts a single-component platinum vulcanizing agent PT2500D produced by Shenzhen department Junchi scientific and technology Limited.
The preparation method of the self-adhesive insulating ceramic silica gel tape for the cable comprises the following steps:
1) selecting glass fiber cloth, carrying out corona treatment on two sides of the glass fiber cloth, soaking and coupling treatment by using a silane coupling agent KH560, then baking for 2.1min in an oven at 133 ℃, and baking and rolling for later use;
2) calendering vulcanized ceramic silicon rubber on glass fiber cloth by a calender, then putting the glass fiber cloth into a tunnel oven for baking, controlling the baking temperature to be set from low to high at 180 ℃, setting the belt speed to be 5m/min, setting the curing time to be 3.3min, forming a vulcanized ceramic silicon rubber layer, and rolling for later use after the glass fiber cloth layer and the vulcanized ceramic silicon rubber layer are completely bonded and vulcanized;
3) rolling an unvulcanized ceramic silica gel layer on the upper surface of the vulcanized ceramic silica gel layer obtained in the step 2) through a rolling mill, attaching a release film on the upper surface of the unvulcanized ceramic silica gel layer, and rolling by using a paper tube or a plastic tube core to obtain a self-adhesive insulating ceramic silica gel tape for cables for later use;
4) and (3) cutting the adhesive tape rolled in the step 3) into products with different widths through a cutting table, and packaging.
The method for winding the self-adhesive insulated ceramic silica gel tape for the cable comprises the following steps:
firstly, separating a separating membrane of a cut ceramic silica gel belt for later use;
secondly, winding the cable with the ceramic silica gel tape with the release film removed in the first step, enabling the unvulcanized ceramic silica gel layer to be attached to the cable, enabling the glass fiber layer to be outside, winding in the left direction or the right direction when winding is carried out, controlling the next winding to press the previous winding to be 4.5mm wide until the required length is reached, and blowing for 1.1min at the winding terminal by using a hot air blower at 205 ℃ after the winding is finished for later use;
and thirdly, repeating the step II for a plurality of times according to the requirements of winding different cables.
Example 5
A self-adhesive insulating ceramic silica gel tape for cables comprises a glass fiber cloth layer, a vulcanized ceramic silica gel layer arranged on the upper surface of the glass fiber cloth layer, an unvulcanized ceramic silica gel layer arranged on the upper surface of the vulcanized ceramic silica gel layer and a release film layer arranged on the upper surface of the unvulcanized ceramic silica gel layer, wherein the vulcanized ceramic silica gel layer is formed by coating vulcanized ceramic silica gel, and the unvulcanized ceramic silica gel layer is formed by coating unvulcanized ceramic silica gel; the glass fiber cloth layer is made of 1078 flat glass fiber cloth with the gram weight of 48g/m 2 . The release film layer is a PE film.
The vulcanized ceramic silica gel comprises the following raw materials in parts by weight: 100 parts of composite ceramic powder, 80 parts of solid silicon rubber, 10 parts of vinyl silicone oil, 5 parts of first toner and 2.4 parts of first vulcanizing agent; the solid silicon rubber is methyl vinyl silicon rubber, and the methyl vinyl silicon rubber adopts Zhengan GA-1053J; the composite ceramic powder is produced by Jiangxi Aote scientific and technological limited company.
The vulcanized ceramic silica gel is prepared by the following steps:
s1, dividing the composite ceramic powder, the solid silicon rubber, the vinyl silicone oil and the first color powder into three equal parts by weight, adding the three equal parts into a special silicon rubber kneading machine for kneading, heating to 135 ℃ for kneading for 50min, vacuumizing for 12min after kneading, taking out of a pot, remilling for 25min in an open mill, filtering, and cooling for later use;
s2, adding the first vulcanizing agent into the mixture obtained in the step S1 before production, and fully mixing to obtain the vulcanized ceramic silicon rubber added with the vulcanizing agent.
The first vulcanizing agent is a two-component platinum vulcanizing agent MC-98AB, the two-component platinum vulcanizing agent MC-98AB is produced by Mitsum rubber and plastic materials Co., Ltd, Dongguan, and each of the two-component platinum vulcanizing agent MC-98AB comprises 0.7% of platinum vulcanizing agent MC-98A and 1.7% of platinum vulcanizing agent MC-98B.
The unvulcanized ceramic silica gel comprises the following raw materials in parts by weight: 113 parts of composite ceramic powder, 80 parts of solid silicone rubber, 10 parts of vinyl silicone oil, 5 parts of second toner and 0.03 part of second disulfide; the solid silicon rubber is methyl vinyl silicon rubber, and the methyl vinyl silicon rubber adopts Zhengan GA-1053J; the composite ceramic powder is produced by Jiangxi Aote scientific and technological Limited.
The unvulcanized ceramic silica gel is prepared by the following steps:
e1, dividing the composite ceramic powder, the solid silicon rubber, the vinyl silicone oil and the second color powder into three equal parts by weight, adding the three equal parts into a special silicon rubber kneader for kneading, heating to 140 ℃ for kneading for 50min, vacuumizing for 12min after kneading, taking out of a pot, remilling for 24min in an open mill, filtering, and cooling for later use;
e2, adding a second vulcanizing agent into the mixture obtained in the step E1 before production, and fully mixing to obtain the unvulcanized ceramic silica gel added with the vulcanizing agent.
The second vulcanizing agent adopts a single-component platinum vulcanizing agent PT2500D produced by Shenzhen department Junchi scientific and technology Limited.
The preparation method of the self-adhesive insulating ceramic silica gel tape for the cable comprises the following steps:
1) selecting glass fiber cloth, carrying out corona treatment on two sides of the glass fiber cloth, soaking and coupling treatment by using a silane coupling agent KH560, then baking for 2.2min in an oven at 135 ℃, and baking and rolling for later use;
2) calendering vulcanized ceramic silicon rubber on glass fiber cloth by a calender, then putting the glass fiber cloth into a tunnel oven for baking, controlling the baking temperature to be set from low to high at 200 ℃, setting the belt speed to be 5m/min, setting the curing time to be 3.5min, forming a vulcanized ceramic silicon rubber layer, and rolling for later use after the glass fiber cloth layer and the vulcanized ceramic silicon rubber layer are completely bonded and vulcanized;
3) rolling an unvulcanized ceramic silica gel layer on the upper surface of the vulcanized ceramic silica gel layer obtained in the step 2) by a rolling mill, attaching a release film on the upper surface of the unvulcanized ceramic silica gel layer, and rolling by using a paper tube or a plastic tube core to obtain a self-adhesive insulating ceramic silica gel tape for cables for later use;
4) and (4) cutting the adhesive tape rolled in the step 3) into products with different widths through a cutting table, and packaging.
The winding method of the self-adhesive insulated ceramic silica gel tape for the cable comprises the following steps:
firstly, separating a separating membrane of a cut ceramic silica gel belt for later use;
secondly, winding the cable, namely removing the ceramic silica gel tape of the release film, attaching an unvulcanized ceramic silica gel layer to the cable, winding the glass fiber layer outwards in the left direction or the right direction, controlling the next winding to press the previous winding for 5mm in width until the required length is reached, and blowing for 1.2min at the winding terminal end by using an air heater at 210 ℃ after the winding is finished for later use;
and thirdly, repeating the step II for a plurality of times according to the requirements of winding different cables.
The ceramic silica gel tape obtained in example 3 was subjected to a performance test, and the results are shown in table 1:
1) the density was tested according to GB/T533-2008, and the impregnation solution: temperature of deionized water impregnation liquid: 23 +/-2 ℃;
2) the tensile strength was tested according to GB/T528-2009, test speed: 500 mm/min;
3) the tearing strength is tested according to GB/T529-: 500 mm/min;
4) vertical burning was tested according to UL 94-2018, single flame application time: 3s flame height: 20 mm;
5) the water absorption is tested according to GB/T1462-2005, and the drying conditions are as follows: at 50 ℃, 24h, the desiccator was cooled to room temperature for testing conditions: deionized water at 23 ℃ for 24 h;
6) the limiting oxygen index is tested according to GB/T2406.2-2009;
7) the volume resistivity is tested according to GB/T1692-;
8) the breakdown strength is tested according to GB/T1695-;
9) the toxicity of the smoke is tested according to GB/T20285-2006;
10) the combustion ash was tested according to GB/T9345.1-2008, test conditions: (600. + -. 25) ℃ C;
11) insulation resistance (insulation resistance at 800 ℃ (test voltage 500VDC)) was tested according to GB/T10581, laboratory environmental conditions: (25 + -2) ° c, (50 + -5)% RH;
12) the fire test conditions were 950 ℃ flame ignition for 10 minutes (test voltage 5000VDC), the breakdown voltage was greater than DC5000V, the laboratory environmental conditions: (25 + -2) ° c, (50 + -5)% RH;
13) the peel force test was performed according to the adhesive strength;
TABLE 1
The above table shows that the ceramic silica gel band prepared by the method has excellent performances, the tensile strength, the tearing strength and the fire resistance of the ceramic silica gel band are obviously improved, and the prepared ceramic silica gel band has good mechanical properties, good fire resistance and long service life.
The above-described embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.
Claims (10)
1. The utility model provides a cable is with self-adhesion insulating ceramic silica gel area which characterized in that: including glass fiber cloth layer, setting at the ceramic silica gel layer of vulcanizing of glass fiber cloth layer upper surface, set up the ceramic silica gel layer of not vulcanizing on ceramic silica gel layer upper surface to and set up the departure rete at the ceramic silica gel layer upper surface of not vulcanizing, glass fiber cloth layer adopts glass fiber cloth, the ceramic silica gel layer of vulcanizing adopts the ceramic silica gel coating of vulcanizing to form, the ceramic silica gel layer of not vulcanizing adopts the ceramic silica gel coating of not vulcanizing to form.
2. The self-adhesive insulating ceramic silica gel tape for cables according to claim 1, characterized in that: the vulcanized ceramic silica gel comprises the following raw materials in parts by weight: 90-110 parts of composite ceramic powder, 70-80 parts of solid silicone rubber, 6-10 parts of vinyl silicone oil, 1-5 parts of first toner and 0.6-2.4 parts of first vulcanizing agent.
3. The self-adhesive insulating ceramic silica gel tape for the cable according to claim 2, characterized in that: the vulcanized ceramic silica gel is prepared by the following steps:
s1, dividing the composite ceramic powder, the solid silicon rubber, the vinyl silicone oil and the first color powder into three equal parts by weight, adding the three equal parts into a special silicon rubber kneader for kneading, heating to 125-135 ℃ for kneading for 40-50min, vacuumizing for 8-12min after kneading, taking out of a pot, remilling for 15-25min in an open mill, filtering, and cooling for later use;
s2, adding the first vulcanizing agent into the mixture obtained in the step S1 before production, and fully mixing to obtain the vulcanized ceramic silicon rubber added with the vulcanizing agent.
4. The self-adhesive insulating ceramic silica gel tape for cables according to claim 2, characterized in that: the first vulcanizing agent is a two-component platinum vulcanizing agent MC-98 AB.
5. The self-adhesive insulating ceramic silica gel tape for cables according to claim 1, characterized in that: the unvulcanized ceramic silica gel comprises the following raw materials in parts by weight: 113 parts of composite ceramic powder, 70-80 parts of solid silicone rubber, 6-10 parts of vinyl silicone oil, 1-5 parts of second toner and 0.01-0.03 part of second disulfide.
6. The self-adhesive insulating ceramic silica gel tape for cables according to claim 5, characterized in that: the unvulcanized ceramic silica gel is prepared by the following steps:
e1, dividing the composite ceramic powder, the solid silicon rubber, the vinyl silicone oil and the second color powder into three equal parts by weight, adding the three equal parts into a special silicon rubber kneader for kneading, heating to 120 ℃ and kneading at 140 ℃ for 40-50min, vacuumizing for 8-12min after kneading, taking out of a pot, remilling for 16-24min in an open mill, filtering, and cooling for later use;
e2, adding a second vulcanizing agent into the mixture obtained in the step E1 before production, and fully mixing to obtain the unvulcanized ceramic silica gel added with the vulcanizing agent.
7. The self-adhesive insulating ceramic silica gel tape for cables according to any one of claim 5, wherein: the second vulcanizing agent is a single-component platinum vulcanizing agent PT 2500D.
8. The self-adhesive insulating ceramic silica gel tape for cables according to any one of claims 2 or 5, wherein: the solid silicone rubber is methyl vinyl silicone rubber.
9. A method for preparing the self-adhesive insulating ceramic silica gel tape for the cable according to any one of claims 1 to 7, wherein the method comprises the following steps: is prepared by the following steps:
1) selecting glass fiber cloth, carrying out corona treatment on two sides of the glass fiber cloth, soaking and coupling treatment by using a silane coupling agent KH560, then placing the glass fiber cloth in an oven with the temperature of 125-;
2) calendering vulcanized ceramic silicon rubber on glass fiber cloth by a calender, then putting the glass fiber cloth into a tunnel oven for baking, controlling the baking temperature to be 120-200 ℃ from low to high, setting the belt speed to be 5m/min, setting the curing time to be 2.5-3.5min, forming a vulcanized ceramic silicon rubber layer, and rolling for later use after the glass fiber cloth layer and the vulcanized ceramic silicon rubber layer are completely bonded and vulcanized;
3) rolling an unvulcanized ceramic silica gel layer on the upper surface of the vulcanized ceramic silica gel layer obtained in the step 2) by a rolling mill, attaching a release film on the upper surface of the unvulcanized ceramic silica gel layer, and rolling by using a paper tube or a plastic tube core to obtain a self-adhesive insulating ceramic silica gel tape for cables for later use;
4) and (3) cutting the adhesive tape rolled in the step 3) into products with different widths through a cutting table, and packaging.
10. A method for winding self-adhesive insulated ceramic silicone tape for cables according to any one of claims 1 to 7, characterized in that: the method comprises the following steps:
firstly, separating a separating membrane of a cut ceramic silica gel belt for later use;
secondly, winding the cable, namely removing the ceramic silica gel tape of the release film, so that the unvulcanized ceramic silica gel layer is attached to the cable, the glass fiber layer is outside, winding in the left direction or the right direction is adopted during winding, the next winding is controlled to press the previous winding for 3-5mm in width until the required length is reached, and blowing for 0.8-1.2min at the winding terminal by an air heater 190-210 ℃ after the winding is finished for later use;
and thirdly, repeating the step II for a plurality of times according to the requirements of winding different cables.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116376432A (en) * | 2023-04-23 | 2023-07-04 | 北京倚天凌云科技股份有限公司 | Color separation coating treatment liquid, coating and ceramic color separation mica tape containing coating |
| CN117912854A (en) * | 2024-03-19 | 2024-04-19 | 深圳新宙邦科技股份有限公司 | Capacitor packaging material, preparation method thereof and capacitor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116376432A (en) * | 2023-04-23 | 2023-07-04 | 北京倚天凌云科技股份有限公司 | Color separation coating treatment liquid, coating and ceramic color separation mica tape containing coating |
| CN117912854A (en) * | 2024-03-19 | 2024-04-19 | 深圳新宙邦科技股份有限公司 | Capacitor packaging material, preparation method thereof and capacitor |
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